Black death is a severe bacterial infection that could be fatal. The disease is characterized by a bacterium strain called Yersinia pestis, which is also known as the “black plague.” This bacterium can be found in animals all over the world and is typically transferred to humans via fleas.
Furthermore, a plague is more likely to spread in regions with poor sanitation, overpopulation, and a big rodent population. If you seriously doubt you have it, seek medical attention right soon.